To answer this question, we need to understand the role of the UNDO tablespace in Oracle databases and the impact of different UNDO_MANAGEMENT settings.
In Oracle databases, the UNDO tablespace is used to store undo information, which is necessary for database transactions to maintain data consistency and enable rollback operations. The UNDO_MANAGEMENT parameter specifies how the undo records are managed in the database.
When the UNDO_MANAGEMENT parameter is set to "AUTO", the Oracle server automatically manages the undo records using Automatic Undo Management (AUM). In this case, the database creates and manages one or more undo tablespaces based on the workload and configuration.
Now, let's analyze each option to understand the result of the CREATE DATABASE statement in this scenario:
Option A) The Oracle server creates no undo tablespace.
This option is incorrect because when UNDO_MANAGEMENT is set to AUTO, the Oracle server will create and manage one or more undo tablespaces.
Option B) The Oracle server creates an undo segment in the system tablespace.
This option is incorrect because when UNDO_MANAGEMENT is set to AUTO, the undo data is not stored in the system tablespace. Instead, it is stored in dedicated undo tablespaces.
Option C) The Oracle server creates one undo tablespace with the name SYS_UNDOTBS.
This option is correct. When the UNDO_MANAGEMENT parameter is set to AUTO, and the UNDO tablespace clause is omitted in the CREATE DATABASE statement, the Oracle server will create a default undo tablespace named "SYS_UNDOTBS".
Option D) Database creation fails because you did not specify an undo tablespace on the create database statement.
This option is incorrect. When the UNDO_MANAGEMENT parameter is set to AUTO, and the UNDO tablespace clause is omitted, the Oracle server will create a default undo tablespace.
Therefore, the correct answer is C) The Oracle server creates one undo tablespace with the name SYS_UNDOTBS.